Because of the holidays they are open in the evening. Its a drive thur event, so you'll be in your car the whole time. Ou can shop and eat, they offer curb side service Six Flags Magic Mountain will be open for the holidays for a drive to event they will acknowledge the curfew in place so you have to make a reservation before you attend the event
I think the time just varies as long as you buy the ticket and are in line you can go in
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